Taco 4900 Series Air Separators help you save money and prolong the life of system pumps, piping and components by removing air and dirt from the system to prevent problems such as reduced heat transfer, loss of efficiency, pipe corrossion, pump damage, noise and the waste and cost of increased energy consumption. Patented PALL ring technology clears the system of microbubbles as small as 18 x 10 -6 meters, sand, dirt and rust.